The party spokesman said the charges pressed against Cacic were "a part of regular, standard procedure" and that it was the court which would have the final say in the matter.
"Mr. Cacic will take part in the proceedings just as he has done so far," Kolman told reporters in the HNS headquarters in Zagreb, expressing condolences on the deaths on behalf of the party.
Cacic said in a press release that he would like to extend one more time his condolences to the family whose members died in the accident
"The prosecution of Kaposvar submitted documents on the case of Radimir Cacic, the president of the Croatian People's Party-Liberal Democrats (HNS), to the local court of Mako in southeastern Hungary on Wednesday," the spokeswoman of the Somogy county office told the Hungarian MTI news agency.
Two people died in the accident on January 8, 2010, one person sustained serious injuries and a fourth light ones, Gyongyi Lucza Egervari was quoted as saying.
"Police said earlier that Cacic, driving from Nagykanizsa to Budapest, had failed to adjust his speed to the prevailing visual conditions, and failed to notice a slow-moving car in front of him which he crashed into."
Cacic left Hungary after posting bail on the day of the accident.